New research identifies blood biomarker for predicting dementia before symptoms develop

New research from NUI Galway and Boston University has identified a blood biomarker that could help identify people with the earliest signs of dementia, even before the onset of symptoms.

Photo by Roger Brown on Pexels.com

The study was published in the Journal of Alzheimer’s Disease.

The researchers measured blood levels of P-tau181, a marker of neurodegeneration, in 52 cognitively healthy adults, from the US-based Framingham Heart Study, who later went on to have specialised brain PET scans. The blood samples were taken from people who had no cognitive symptoms and who had normal cognitive testing at the time of blood testing. 

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